BMW 3-Series (E90 E92) Forum - View Single Post

DrewM. · 06-12-2018, 01:59 PM

I'm going to be remapping my n54, 335i using MHD in the near future, but want to avoid any misfire issues that seem, oh so common when upping the boost and (I guess) ignition timing on the n54.

I am leaning towards the Delphi as they seem well regarded over the in US, where, lets face it, there are thousands more tuned n54's than there are in the UK. but, I have found two part number both of which pertain to the n54, which ones do I need?

Delphi GN10571-12B1, which is a 12v coil
https://www.onlinecarparts.co.uk/delphi-7428306.html

Delphi GN10475-12B1, rated at 14v
https://www.onlinecarparts.co.uk/delphi-7908929.html

I'll also be doing the plugs while I have it apart, I assume the Bosch ZGR6STE2 would be a good choice, or is there a better plug to use when running a stage 1 MHD tune, A step colder maybe?

Thanks.
Drew.

06-12-2018, 01:59 PM	#1
DrewM. Private 5 Rep 56 Posts Drives: e92 335i Join Date: Apr 2018 Location: South England iTrader: (0)	Which Delphi ignition coils? I'm going to be remapping my n54, 335i using MHD in the near future, but want to avoid any misfire issues that seem, oh so common when upping the boost and (I guess) ignition timing on the n54. I am leaning towards the Delphi as they seem well regarded over the in US, where, lets face it, there are thousands more tuned n54's than there are in the UK. but, I have found two part number both of which pertain to the n54, which ones do I need? Delphi GN10571-12B1, which is a 12v coil https://www.onlinecarparts.co.uk/delphi-7428306.html Delphi GN10475-12B1, rated at 14v https://www.onlinecarparts.co.uk/delphi-7908929.html I'll also be doing the plugs while I have it apart, I assume the Bosch ZGR6STE2 would be a good choice, or is there a better plug to use when running a stage 1 MHD tune, A step colder maybe? Thanks. Drew.
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